JP2002355142A - Bath chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bath chair which helps an elderly or physically handicapped person sitting on it move to and mount on the rim of a bath. SOLUTION: This bath chair is provided with a seat, a support frame supporting the seat, and an armrest which is supported by the support frame and can be moved up and down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath chair having a seat, a support frame for supporting the seat, and an armrest supported by the support frame.

[0002]

2. Description of the Related Art Bath chairs having a seating surface, a supporting frame for supporting the seating surface, and an armrest supported by the supporting frame are widely used for bathing elderly and lower limb disabled persons.

[0003]

In a bath chair provided with a seat, a support frame for supporting the seat, and an armrest supported by the support frame, the armrest is conventionally fixed to the support frame. As a result, the conventional bath chair has a problem in that the armrests are in the way, and the elderly, the lower-limb disabled, and the like sitting on the bath chair cannot cross the bathtub rim while sitting on the bath chair. The present invention has been made in view of the above problems,
A seating surface, a supporting frame for supporting the seating surface, and a bath chair including an armrest supported by the supporting frame, wherein an elderly person sitting on the bathing chair, a lower limb disabled person, and the like,
An object of the present invention is to provide a bath chair that can be straddled on a bathtub rim while sitting.

[0004]

In order to solve the above-mentioned problems, the present invention comprises a seating surface, a supporting frame for supporting the seating surface, and an armrest supported by the supporting frame. A bath chair characterized by being movable. According to the present invention, there is provided a bath chair including a seat surface, a support frame for supporting the seat surface, and an armrest supported by the support frame, wherein the armrest is horizontally rotatable. According to the present invention, there is provided a bath chair comprising a seat surface, a support frame for supporting the seat surface, and an armrest supported by the support frame, wherein the armrest is rotatable upward and backward. In the present invention, a seat surface, a support frame supporting the seat surface, and an armrest supported by the support frame,
A bath chair, wherein the armrest is rotatable downward and backward. According to the present invention, there is provided a bath chair comprising a seat surface, a support frame for supporting the seat surface, and an armrest supported by the support frame, wherein the armrest is rotatable downward and forward. According to the present invention, there is provided a bath chair comprising a seat surface, a support frame for supporting the seat surface, and an armrest supported by the support frame, wherein the armrest is rotatable downward and sideways. . The armrest is vertically movable or horizontally rotatable, or upward and backward rotatable, or downward and backward rotatable, or downward and forward rotatable, or downward and side. If the armrest can be moved to the lower side, the armrest can be moved to a position lower than the seating surface, or the armrest can be moved away from the seating surface. You can straddle the rim. When the armrest can be moved up and down, the space required for moving the armrest is narrower than in other cases, so that the bathtub rim straddling acceleration function can be exhibited even in a small bathroom. When the armrest rotates horizontally, there is an advantage that the assistant does not need to bend when the armrest rotates. When the armrest is rotatable upward and backward, there is no need for a space for armrest rotation on the side of the bath chair when rotating the armrest. There is an advantage that it does not need to bend. When the armrest is rotatable downward and rearward, and when it is rotatable downward and forward, the armrest does not require a space for rotating the armrests on the sides and rear of the bath chair, so that the armrest can span the bathtub rim even in a narrow bathroom. There is an advantage that a promotion function can be exhibited.

[0005] In a preferred embodiment of the invention, the armrest is rotatable downward and laterally, the axis of rotation of the armrest being below the seating surface. If the rotation axis of the armrest is below the seating surface, the trajectory of the armrest when rotating sideways downward approaches the seating surface, so the space required for the rotation of the armrest is reduced, and the usability of the bath chair is improved. .

In a preferred embodiment of the present invention, the armrest is rotatable downward and to the side, the rotation axis of the armrest is below the seating surface, and the rotation axis of the right armrest is greater than the rotation axis of the left armrest. Is also on the left. If the rotation axis of the right armrest is on the left side of the rotation axis of the left armrest, the trajectory of the armrest when rotating sideways downward will be closer to the seating surface, so the space required for rotation of the armrest will be increased. It is further reduced and the usability of the bath chair is further improved.

[0007] In a preferred embodiment of the present invention, the armrest is located inside the legs of the support frame. If the armrest is inside the legs of the support frame, the stability of the bath chair when a downward load is applied to the armrest is increased.

[0008] In a preferred aspect of the present invention, a part of the armrest extends at substantially the same height as the seat surface with the armrest rotated downward. If a part of the armrest extends at substantially the same height position as the seating surface while the armrest is rotated downward, the bath chair is placed sideways on the bathtub and the armrest is rotated downward, so that the seating surface and the bathtub can be connected. Since the gap between them is filled by armrests, the elderly,
A person with a lower limb disability or the like can obtain a sense of security when straddling the bathtub rim while sitting on the seat.

In a preferred aspect of the present invention, the armrest is rotatable downward and backward, and the bath chair further includes a lock mechanism for preventing rotation of the armrest,
The rotation axis of the armrest is disposed at the front of the bath chair, and the locking mechanism is disposed at the rear of the bath chair. By disposing the rotation axis of the armrest and the lock mechanism at an interval, the support reaction force applied to the support point of the armrest when the armrest is used is reduced, and the durability of the bath chair is improved. If the rotation axis of the armrest is arranged in front of the bath chair, there is no need for a large space for rotating the arm rest behind the bath chair, so even in a small bathroom, a large space is secured in front of the bath chair when rotating the arm rest. can do. As a result, an elderly person, a person with a lower limb disorder, etc. can easily straddle the bathtub rim while sitting on the bath chair.

In a preferred aspect of the present invention, the armrest is rotatable downward and forward, and the bath chair further includes a lock mechanism for preventing rotation of the armrest,
The rotation axis of the armrest is disposed at the rear of the bath chair, and the locking mechanism is disposed at the front of the bath chair. By disposing the rotation axis of the armrest and the lock mechanism at an interval, the support reaction force applied to the support point of the armrest when the armrest is used is reduced, and the durability of the bath chair is improved.

[0011] In a preferred aspect of the present invention, the lock mechanism has a lock release lever, and the tip of the lock release lever is directed forward of the bath chair. If the tip of the unlocking lever is directed toward the front of the bath chair, the unlocking lever can be easily operated from the front of the bath chair without obstacles while the bath chair is laid on the bathtub.

In a preferred embodiment of the invention, the armrest is rotatable upward and rearward, or rotatable downward and rearward, or rotatable downward and forward, and the bath chair is further provided with an armrest of the armrest. A lock mechanism for preventing rotation is provided, and the lock mechanism is disposed adjacent to a rotation axis of the armrest. If the lock mechanism is arranged adjacent to the rotation axis of the armrest, the workability of maintenance work of the armrest rotation part is improved.

[0013] In a preferred aspect of the present invention, the armrest is rotatable downward and to the side, and the bath chair further includes a lock mechanism for preventing rotation of the armrest,
The lock mechanism has a fixed pipe into which the end of the armrest is rotatably inserted, and a pin inserted into a through hole formed in the end of the armrest and the fixed pipe. A lock mechanism can be configured by a fixed pipe into which the end of the armrest is rotatably inserted, and a pin inserted into a through hole formed in the end of the armrest and the fixed pipe.

In a preferred aspect of the present invention, the pin has a second lock mechanism for preventing falling off. The second lock mechanism prevents the pins from falling off, and prevents unexpected rotation of the armrest.

In a preferred aspect of the present invention, the armrest is rotatable downward and to the side, and the bath chair further includes a lock mechanism for preventing rotation of the armrest,
The lock mechanism includes a fixed pipe into which the end of the armrest is rotatably inserted, a pin attached to the end of the armrest and engaging with an L-shaped slit formed in the fixed pipe,
A spring for biasing the end of the armless in the axial direction. In a preferred aspect of the present invention, the armrest is rotatable downward and sideways, and the bath chair further includes a lock mechanism for preventing rotation of the armrest, wherein the lock mechanism is rotatably inserted at an end of the armrest. A fixed pipe attached to the fixed pipe, a pin engaged with an L-shaped slit formed in an end peripheral wall of the armrest, and a spring for urging the end of the armless in the axial direction. A fixed pipe into which the end of the armrest is rotatably inserted, a pin attached to the end of the armrest and engaged with an L-shaped slit formed in the fixed pipe, and a spring for urging the end of the armless in the axial direction Or a fixed pipe into which the end of the armrest is rotatably inserted,
A lock mechanism can be constituted by a pin attached to the fixed pipe and engaging with an L-shaped slit formed in an end peripheral wall of the armrest, and a spring for urging the end of the armless in the axial direction.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A bath chair according to a first embodiment of the present invention will be described. As shown in FIG. 1, the bath chair A includes a seat 1, a support frame 2 that supports the seat 1, an armrest 3 supported by the support frame 2, and a backrest 4. A pair of legs 3 a, 3 a of the inverted U-shaped armrest 3 are inserted into a pair of sheath tubes 5, 5 fixed to the support frame 2. By inserting the lock pins 6, 6 into the locking holes formed in the upper ends of the sheath tubes 5, 5, and the locking holes formed in the lower ends of the legs 3a, 3a, the armrest 3 is moved to the upper operating position. Is held in. The bath chair A is placed beside the tub rim, the lock pins 6, 6 are removed, and the armrest 3 is pushed down. The legs 3a, 3a enter the sheath tubes 5, 5, and the armrest 3 moves to a retracted position below the seating surface 1. The lock pins 6, 6 are inserted into the locking holes formed in the lower ends of the sheath tubes 5, 5 and the locking holes formed in the lower ends of the legs 3a, 3a, thereby holding the armrest 3 at the retracted position. An elderly person, a person with a lower limb disability or the like can move across the bathtub rim while sitting on the seating surface 1 because the armrest 3 is moved to a position where it does not become an obstacle. When getting out of the bathtub, the elderly, lower limb disabled, etc., should sit on the bath chair placed next to the bathtub rim, straddle the bathtub rim while sitting, face the front, remove the lock pins 6, 6,
After raising the armrest 3 and moving it to the operating position,
The lock pins 6, 6 are inserted into the locking holes formed at the upper ends of the sheath tubes 5, 5 and the locking holes formed at the lower ends of the legs 3a, 3a to hold the armrest in the operating position. Armrest 3
Moves up and down, so the space required for moving the armrest 3 is narrow. Therefore, the bath chair A can exhibit the bathtub rim straddling acceleration function even in a small bathroom. As shown in FIG. 2, the legs 3a, 3a of the armrest 3 may be inserted into the legs 2a, 2a of the support frame 2. Sheath tube 5,
5 becomes unnecessary, and the number of parts is reduced.

A second embodiment of the present invention will be described. As shown in FIG. 3, in the bath chair B, the lower end of the leg 3b of the inverted L-shaped armrest 3 is attached to the rear of the support frame 2 so as to be horizontally rotatable about a vertical axis. Except for the above, the structure of the bath chair B is similar to the structure of the bath chair A. In the bath chair B, the armrest 3
Is rotated horizontally about the leg 3b, and moved away from the seating surface 1. Then, an elderly person, a lower limb disabled person, etc. straddles the bathtub rim while sitting on the seating surface 1. Since the armrest 3 is kept away from the seating surface 1, an elderly person, a person with a lower limb disability or the like can easily straddle the bathtub rim while sitting on the seating surface 1. Since the armrest 3 rotates horizontally, there is an advantage that the assistant does not need to bend when the armrest 3 rotates. As shown in FIG. 4, the leg portions 3b, 3
b may be inserted into the legs 2a, 2a of the support frame 2. A bearing for rotatably supporting the armrest 3 is not required, and the number of parts is reduced.

A third embodiment of the present invention will be described. As shown in FIG. 5, in the bath chair C, the inverted U-shaped armrest 3 is arranged with the end of the lower leg 3c facing rearward. The armrest 3 is attached to a rear portion of the support frame 2 at an end of the lower leg 3c so as to be rotatable upward and backward around a horizontal axis. Except for the above, the structure of the bath chair C is the same as the structure of the bath chair A. In the bath chair C, after the armrest 3 is rotated upward and backward to keep it away from the seat 1, an elderly person, a person with a lower limb disability or the like straddles the bathtub rim while sitting on the seat 1.
Since the armrest 3 is kept away from the seat 1,
Elderly people, lower limb disabled persons, etc. can easily straddle the bathtub rim while sitting on the seating surface 1. Since the armrest 3 rotates upward and rearward, the rotation of the armrest 3 does not require a space for rotating the armrest 3 beside the bath chair C. Therefore, the bath chair C has the advantage that the bathtub rim straddling promotion function can be exhibited even in a small bathroom,
This has the advantage that the assistant does not have to buckle.

A fourth embodiment of the present invention will be described. As shown in FIG. 6, in the bath chair D, the inverted U-shaped armrest 3 is disposed with the end of the lower leg 3d facing forward. The armrest 3 is attached to a front portion of the support frame 2 at an end of the lower leg 3d so as to be rotatable downward and backward around a horizontal axis. Except for the above, the structure of the bath chair D is the same as the structure of the bath chair C. In the bath chair D, after the armrest 3 is rotated downward and backward to keep the armrest 3 away from the seating surface 1, an elderly person, a lower limb disabled person, or the like straddles the bathtub rim while sitting on the seating surface 1.
Since the armrest 3 is kept away from the seat 1,
Elderly people, lower limb disabled persons, etc. can easily straddle the bathtub rim while sitting on the seating surface 1. Since the armrest 3 rotates downward and backward, the armrest 3 does not require a space for rotating the armrest 3 beside the bath chair D when rotating. Since the armrest 3 supported at the front of the support frame 2 is rotated backward, a large space is not required behind the bath chair D for rotating the armrest 3. Therefore, a large space can be secured in front of the bath chair D even in a small bathroom. As a result, an elderly person, a lower limb disabled person, etc. can easily straddle the bathtub rim while sitting on the seating surface 1 of the bath chair D.

A fifth embodiment of the present invention will be described. As shown in FIG. 7, the structure of the bath chair E is the same as the structure of the bath chair C. In the bath chair E, the armrest 3 is moved downward and forward so as to keep it away from the seating surface 1. Since the armrest 3 rotates downward and forward, the rotation of the armrest 3 does not require a space for rotating the armrest 3 on the side and rear of the bath chair E. Therefore, the bath chair E can be used close to the rear wall.
Since the armrest 3 supported at the rear of the support frame 2 is rotated forward, a large space is not required in front of the bath chair E for rotating the armrest 3. Therefore, the bath chair E has an advantage that the bath rim straddling promotion function can be exhibited even in a small bathroom.

A sixth embodiment of the present invention will be described. As shown in FIG. 8, in the bath chair F, the inverted L-shaped armrest 3 is provided at the lower end of the leg 3 b so as to be rotatable downward and laterally around the horizontal axis so that the support frame 2 extends laterally. It is attached to the section 2b. Except for the above, the structure of the bath chair F is the same as the structure of the bath chair A. In the bath chair F, after the armrest 3 is rotated downward and to the side and kept away from the seat 1, the elderly, the lower limb disabled, etc.
Straddle the bathtub rim while sitting on the seat 1. Since the armrest 3 is kept away from the seating surface 1, an elderly person, a person with a lower limb disability or the like can easily straddle the bathtub rim while sitting on the seating surface 1.

Next, a seventh embodiment of the present invention will be described. As shown in FIG. 9, in the bath chair G, the lower part of the leg 3 b of the inverted L-shaped armrest 3 is bent and extends horizontally inside the leg 2 a of the support frame 2. Armrest 3
At the end of the leg 3b located below the seating surface 1,
It is attached to the center of the rear part of the support frame 2 so as to be rotatable downward and sideways around the horizontal axis. Except for the above, the structure of the bath chair G is the same as the structure of the bath chair F. In the bath chair G, after the armrest 3 is rotated downward and to the side to keep the armrest 3 away from the seating surface 1, an elderly person, a person with a lower limb disability or the like straddles the bathtub rim while sitting on the seating surface 1. Since the armrest 3 is kept away from the seating surface 1, an elderly person, a person with a lower limb disability or the like can easily straddle the bathtub rim while sitting on the seating surface 1. As can be seen by comparing FIGS. 8 and 9, in the bath chair G, since the rotation axis of the armrest 3 is below the seating surface 1, the trajectory of the armrest 3 when rotating sideways downward is represented by the bath chair F. Approaching the seating surface 1. As a result, the space required for rotating the armrest 3 is reduced, and the usability of the bath chair is improved.

An eighth embodiment of the present invention will be described. As shown in FIG. 10, in the bath chair H, the rotation axis of the right armrest 3 is located on the left side of the rotation axis of the left armrest 3. Except for the above, the structure of the bath chair H is the same as the structure of the bath chair G. In the bath chair H, after the armrest 3 is rotated downward and to the side to keep the armrest 3 away from the seating surface 1, an elderly person, a lower limb disabled person or the like straddles the bathtub rim while sitting on the seating surface 1. Since the armrest 3 is kept away from the seating surface 1, an elderly person, a person with a lower limb disability or the like can easily straddle the bathtub rim while sitting on the seating surface 1. As can be seen by comparing FIGS. 9 and 10, in the bath chair H, since the rotation axis of the right armrest 3 is located on the left side of the rotation axis of the left armrest 3, the armrest when rotating sideways downward is provided. The trajectory 3 further approaches the seating surface 1 as compared with the bath chair G. As a result, the space required for rotating the armrest 3 is further reduced, and the usability of the bath chair is further improved.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. In the fourth to sixth embodiments, as shown in FIG. 11, the armrest 3 may be provided inside the leg 2a of the support frame 2. If the armrest 3 is located inside the legs 2a of the support frame 2, the stability of the bath chair when the downward load is applied to the armrest 3 increases.

In the third to sixth embodiments, the armrest 3
Prevents the rotation of armrest 3 when using
An example of a lock mechanism that locks the upper position 3 will be described below.
I do. In the fourth embodiment, as shown in FIG.
Move the end of the lower leg 3d of the U-shaped armrest 3 backward.
While facing the rear of the support frame 2
Attach the lock mechanism 7 to the end, and mount the base 3d on the lower leg 3d.
Part can be rotated around the horizontal axis in front of the support frame 2
May be attached. The lock mechanism 7 has a notch 7a.
Claw 7b and lock release lever attached to claw 7b
7c. The claw 7b is located on the lower leg of the armrest 3.
3d is rotatably mounted via a pin 7d.
You. The lock mechanism 7 can further engage with the notch 7a of the claw 7b.
Rod 7e and two support plates fixed to rod 7e
7f. The rod 7e is fixed to the support frame 2.
Is defined. According to the above configuration, the use of the armrest 3
In use, rotate the lock release lever 7c in the direction of the arrow.
The notch 7a of the claw 7b is inserted into the two support plates 7 of the rod 7e.
f and engage the part between
The armrest 3 is shown as a solid line in FIG.
Lock in upper position. Elderly people, lower limb disabled, etc.
When moving from child D to the bathtub, unlock lever 7
is rotated in the direction of the double arrow, and the notch 7a and the rod 7e
After releasing the engagement and unlocking, the armrest 3
By pushing the end of the upper leg downward, FIG.
And move the armrest 3 downward and rearward as indicated by the broken line.
Can be rotated. Armrest 3 down and behind
In a state where the armrest 3 is rotated toward the
Extends at approximately the same height, the gap between the seating surface 1 and the bathtub
Elderly, lower limbs as buried by armrest 3
When a disabled person sits on the seat 1 and straddles the bathtub rim
In addition, a sense of security can be obtained. Rotation of armrest 3
The shaft and the lock mechanism 7 are arranged at an interval.
The support point of the armrest 3 when using the armrest 3
The reaction force applied to the chair decreases, and the durability of the bath chair D improves.
I do. With the notch 7a engaged with the rod 7e, the claw 7b
Is sandwiched between the two support plates 7f and contacts the support plate,
The armrest 3 is supported by the support plate.
The backlash of the lock mechanism 7 during use is prevented, and the arm
The play of the strike 3 is prevented. In the fourth embodiment,
The lower side of the armrest 3 facing the rear of the support frame 2
The lock mechanism 7 may be provided at the base of the leg 3d. A
The rotation axis of the armrest 3 and the lock mechanism 7 are spaced apart from each other.
Since it is arranged, armless when using the armrest 3
The support reaction force applied to the support point of the third chair decreases, and the
The durability is improved.

In the fifth embodiment, as shown in FIG. 13A, the base of the lower leg 3c of the armrest 3 faces the front of the support frame 2, and the lock mechanism 7 shown in FIG.
May be attached to the base. Lock release lever 7
When the lock is released by rotating c, the armrest 3 can be rotated downward and forward. Armrest 3
Since the rotating shaft and the lock mechanism 7 are arranged at an interval, the supporting reaction force applied to the support point of the armrest 3 when the armrest 3 is used is reduced, and the durability of the bath chair E is improved. As shown in FIG. 13B, the tip of the unlocking lever 7c of the lock mechanism 7 may be directed forward of the bath chair E. If the tip of the unlocking lever 7c is directed forward of the bath chair E, the unlocking lever 7c can be easily moved from the front of the bath chair E without obstacles in a state where the bath chair E is laid on the bathtub. Can operate.

In the fifth embodiment, as shown in FIG. 14, a lock mechanism 8 may be provided at the end of the lower leg 3c of the armrest 3 adjacent to the rotation shaft 3e of the armrest 3. . The lock mechanism 8 has a lock plate 8a. The lock plate 8a has an arc-shaped guide hole 8b provided concentrically with the rotation shaft 3e, and locking holes 8c and 8d provided on an arc concentric with the guide hole 8b. The lock plate 8 a is disposed in parallel with the lower leg 3 c of the armrest 3 and is fixed to the rear of the support frame 2. Pin 8e fixed to the end of lower leg 3c of armrest 3
Is inserted through the guide hole 8b. The pin 8f engageable with the locking holes 8c and 8d of the lock plate 8a is
Is inserted through the end of the lower leg 3c. Pin 8f is
The spring 8g urges the lock plate 8a. A knob 8f 'is formed at one end of the pin 8f. When the armrest 3 is used, the rotation of the armrest 3 is prevented by engaging the pin 8f with the locking hole 8c, and the armrest 3 is locked at the upper position shown by the solid line in FIG.
When the elderly, the lower limb disabled, etc. move from the bath chair E to the bathtub, pull the knob 8f 'against the urging force of the spring 8g,
After releasing the lock by releasing the pin 8f from the locking hole 8c, the base of the upper leg portion of the armrest 3 is pushed downward, so that the armrest 3 is moved downward and forward as shown by a dashed line in FIG. Can be rotated. When the pin 8e moves in the arc-shaped guide hole 8b and reaches the end of the hole, the rotation of the armrest 3 stops. Knob 8
When the hand is released from f ', the pin 8 receiving the urging force of the spring 8g
f moves toward the lock plate 8a and engages with the locking hole 8d. As a result, the armrest 3 is locked at a lower position indicated by a dashed line in FIG. By arranging the lock mechanism 8 adjacent to the rotation shaft 3e of the armrest 3, workability in maintaining the rotating part of the armrest 3 is improved. Instead of the arc-shaped guide hole 8b, an arc-shaped guide groove in which the pin 8e can be engaged is provided, and instead of the engaging holes 8c and 8d, a locking recess in which the pin 8f can be engaged is provided. Is also good.

In the third embodiment, a lock mechanism 8 may be provided adjacent to the rotation axis of the armrest 3 at the end of the lower leg 3c of the armrest 3, and in the fourth embodiment, the lock mechanism 8 An armrest 3 is attached to the end of the side leg 3d.
The lock mechanism 8 may be provided adjacent to the rotation shaft of.

In the fifth embodiment, similarly to the armrest 3 of the fourth embodiment, the end of the lower leg 3c of the armrest 3 is directed forward of the bath chair E so as to face the front of the support frame 2. Alternatively, the base of the lower leg 3c may be attached to the rear portion of the support frame 2 so as to be rotatable around a horizontal axis, and the lock mechanism 7 may be provided at the end of the lower leg 3c. In a state where the armrest 3 is rotated downward and forward, a part of the armrest 3 extends at a position substantially at the same height as the seating surface 1, and a gap between the seating surface 1 and the bathtub is filled with the armrest 3. An elderly person, a person with a lower limb disability or the like can get a sense of security when straddling the bathtub rim while sitting on the seating surface 1. Since the rotation axis of the armrest 3 and the lock mechanism 7 are arranged at an interval, the support reaction force applied to the support point of the armrest 3 when the armrest 3 is used is reduced, and the durability of the bath chair E is improved.

In the sixth embodiment, a lock mechanism 9 may be provided as shown in FIG. Lock mechanism 9
Is a pipe 9a into which the end of the lower leg 3c of the armrest 3 is rotatably inserted, a through hole 9b formed in the peripheral wall of the end of the lower leg 3c, and a through hole formed in the pipe 9a. It has a hole 9c and a pin 9d inserted into the through holes 9b, 9c. The pipe 9a is fixed to the support frame 2. According to the above configuration, when the armrest 3 is used,
Insert the pin 9d into the through holes 9b and 9c, and
15, the armrest 3 is locked in the upper position shown by the solid line in FIG. 15, and when an elderly person or a person with a lower limb disability moves from the bath chair F to the bathtub, the pin 9d is inserted into the through hole 9.
After unlocking by pulling out from b, 9c, the upper leg of the armrest 3 is pushed to the side to obtain FIG.
, The armrest 3 can be rotated downward and to the side as shown by the alternate long and short dash line. As shown in FIG. 15 (b), the projection 9 which can be protruded and retracted from the pin 9d by the urging force of the spring.
A second lock mechanism constituted by d 'and the like for preventing the pin 9 from falling off may be provided. The second lock mechanism prevents the pins 9d from falling off, and prevents the armrest 3 from rotating unexpectedly.

In the sixth embodiment, a lock mechanism 10 may be provided as shown in FIG. Lock mechanism 10
Is a pipe 10a into which the end of the lower leg 3c of the armrest 3 is rotatably inserted, an L-shaped slit 10b formed in the pipe 10a, and an L-shaped fixed to the end of the lower leg 3c. A pin 10c that can be engaged with the slit 10b and a closed end of the pipe 10a and an end of the lower leg 3c, and an end of the lower leg 3c is disposed in the axial direction of the lower leg 3c. And a spring 10d for urging the spring. According to the above configuration,
When the armrest 3 is used, the pin 10c is locked by the locking portion 10 of the L-shaped slit 10b under the urging force of the spring 10d.
b ', the rotation of the armrest 3 is prevented and the armrest 3 is locked in the upper position shown by the solid line in FIG. 16, and when the armrest 3 is not used, the armrest 3 is pushed against the urging force of the spring 10d. After releasing the pin 10c from the lock portion 10b 'of the L-shaped slit to release the lock,
By pushing the upper leg of the armrest 3 sideways, the armrest 3 can be rotated downward and sideways as shown by the dashed line in FIG. L-shaped slit 10b
A similar slit is used instead of the lower leg 3 of the armrest 3.
c and a similar pin is used instead of the pin 10c.
0, and the pin may be engaged with an L-shaped slit formed in the lower leg.

[0032]

As can be seen from the above description, in the bath chair according to the present invention, the armrest can be moved up and down, or can be rotated horizontally, or can be rotated upward and backward, or can be rotated downward and downward. Being rotatable rearward, or rotatable downward and forward, or rotatable downward and sideways, the armrest can be moved lower than the seating surface or the armrest can be moved away from the seating surface. Therefore, an elderly person, a lower limb disabled person, and the like sitting on the bath chair can straddle the bathtub rim while sitting on the bath chair.

[Brief description of the drawings]

FIG. 1 is a side view of a bath chair according to a first embodiment of the present invention.

FIG. 2 is a side view of a modification of the bath chair of FIG. 1;

FIG. 3 is a top view of a bath chair according to a second embodiment of the present invention.

FIG. 4 is a top view of a modification of the bath chair of FIG. 3;

FIG. 5 is a side view of a bath chair according to a third embodiment of the present invention.

FIG. 6 is a side view of a bath chair according to a fourth embodiment of the present invention.

FIG. 7 is a side view of a bath chair according to a fifth embodiment of the present invention.

FIG. 8 is a front view of a bath chair according to a sixth embodiment of the present invention.

FIG. 9 is a structural view of a bath chair according to a seventh embodiment of the present invention. (A) is a front view, (b) is a perspective view of an armrest.

FIG. 10 is a structural view of a bath chair according to an eighth embodiment of the present invention. (A) is a front view, (b) is a perspective view of an armrest.

FIG. 11 is a front view of a modified example of the bath chair according to the fourth to sixth embodiments of the present invention.

FIG. 12 is a structural view of a lock mechanism of an armrest.

FIG. 13 is a structural view of a lock mechanism of the armrest.

FIG. 14 is a structural view of a lock mechanism of an armrest.

FIG. 15 is a structural view of a lock mechanism of an armrest.

FIG. 16 is a structural diagram of a lock mechanism of an armrest.

[Description of Signs] A, B, C, D, E, F, G, H Bath chair 1 Seat 2 Support frame 2a Leg 3 Armrest 3a, 3b Leg 3c, 3d Lower leg 4 Backrest 5 Sheath tube 7, 8, 9, 10 Lock mechanism

Claims (18)

[Claims] 1. A bath chair comprising a seat surface, a support frame supporting the seat surface, and an armrest supported by the support frame, wherein the armrest is movable up and down. 2. A bath chair comprising a seat, a support frame for supporting the seat, and an armrest supported by the support frame, wherein the armrest is rotatable horizontally. 3. A bath chair comprising a seat, a support frame for supporting the seat, and an armrest supported by the support frame, wherein the armrest is rotatable upward and backward. 4. A bath chair comprising a seat surface, a support frame for supporting the seat surface, and an armrest supported by the support frame, wherein the armrest is rotatable downward and rearward. 5. A bath chair comprising a seat surface, a support frame for supporting the seat surface, and an armrest supported by the support frame, wherein the armrest is rotatable downward and forward. 6. A bath chair comprising a seat surface, a support frame for supporting the seat surface, and an armrest supported by the support frame, wherein the armrest is rotatable downward and sideways. 7. The bath chair according to claim 6, wherein the rotation axis of the armrest is located below the seating surface. 8. The bath chair according to claim 7, wherein the rotation axis of the right armrest is located on the left side of the rotation axis of the left armrest. 9. The bath chair according to claim 4, wherein the armrest is located inside the legs of the support frame. 10. The bath chair according to claim 4, wherein a part of the armrest extends at substantially the same height as the seat surface in a state where the armrest is rotated downward. 11. A lock mechanism for preventing rotation of an armrest, wherein a rotation shaft of the armrest is disposed at a front portion of the bath chair, and the lock mechanism is disposed at a rear portion of the bath chair. Item 6. The bath chair according to Item 4. 12. A lock mechanism for preventing rotation of an armrest, wherein a rotation shaft of the armrest is disposed at a rear portion of the bath chair, and the lock mechanism is disposed at a front portion of the bath chair. Item 6. The bath chair according to item 5. 13. The bath chair according to claim 12, wherein the lock mechanism has a lock release lever, and a tip of the arm is directed forward of the bath chair. 14. The apparatus according to claim 3, further comprising a lock mechanism for preventing rotation of the armrest, wherein the lock mechanism is disposed adjacent to a rotation axis of the armrest. Bath chair. 15. A lock mechanism for preventing rotation of the armrest, wherein the lock mechanism includes a fixed pipe into which an end of the armrest is rotatably inserted, and a through-hole formed in the end of the armrest and the fixed pipe. The bath chair according to claim 6, further comprising a pin to be inserted. 16. The bath chair according to claim 15, wherein the pin has a second lock mechanism for preventing falling off. 17. A lock mechanism for preventing rotation of an armrest, wherein the lock mechanism includes a fixed pipe into which an end of the armrest is rotatably inserted, and an L-shape formed on the fixed pipe attached to the end of the armrest. The bath chair according to claim 6, further comprising a pin that engages with the slit and a spring that biases an end of the armrest in an axial direction. 18. A lock mechanism for preventing rotation of an armrest, wherein the lock mechanism includes a fixed pipe into which an end of the armrest is rotatably inserted, and an L attached to the fixed pipe and formed on a peripheral wall at an end of the armrest. 7. A bath chair according to claim 6, comprising a pin engaging the shaped slit and a spring for biasing the end of the armless in the axial direction.